#include <stdio.h>          
int main()                 

{
    
#if 0
    short distance = 50000;

    int length = sizeof(distance);

    printf("length = %d\n",length);


    int totalPersonNum = 4256789;

    printf("length = %d\n",sizeof(int));

    long timeSum = 64575898976;

    printf("length = %d\n",sizeof(long));


    printf("Hello World!\n\n\n\n");

#endif
    
#if 0
    float num = 3.1415926535;

    printf("length = %d\n",sizeof(float));

    printf("num = %10f\n",num);

    double diamondHeigth = 1.1212123123;

    printf("length = %1d\n",sizeof(double));

    printf("diamondHeigth = %10f\n",diamondHeigth);

#endif

    char ch = 'A';

    printf("length = %zu\n",sizeof(char));

    printf("ch = %c,ch = %d\n",ch, ch);

    //a
    return 0;

}